Improvement in feeding mortising-machines



R.P.'BENTON. v

FEEDING MORTISING MACHINES.- No, 12,287.

PATENTED JAN. 23, 1855.

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3 i a a) NETE ATEN'I FFIGEQ a. r. BENTON, OF ROCHESTER, NEW YORK.

Specification forming part of Letters Patent No. 12,257, dated January23, 1855.

1'0 all whom it may concern..-

Be it known that I, R. P. BENTON, of Rochside of which the pulley K isclutched by operating a lever, N, when it is desired to give ester, inthe county of Monroe and State of motion to the pulley K. The lever N ispro- New York, have invented a new and Improved Mortising-Machine; and Ido hereby declare that the following is a full, clear, and exactdescription of the same, reference being had to the annexed drawings,making a part of this specification, in which- Figure 1 is a plan or topview of my improved machine. Fig. 2.is a side elevation of the same.Fig. 3 is a detached plan or top view of the ways and screw by which thestuff is fed to the cutter. Fig. 4 is a side view of a piece of stuffwith mortises shown in it.

, sponding parts in the several figures.

The nature of my invention consists in the peculiar means employed forfeeding the stuff to the cutter, whereby mortises may be cut in saidstuff the required length and depth, the feeding device receiving motionfrom the same driving-shaft as the cutter and requiring no particularcare or attention during its operation.

To enable others skilled in the art to make and use my invention, I willproceed to describe its construction and operation.

Arepresents the frame of the machine, which may be constructed in anyproper manner to support the working parts.

B represents a driving-shaft running in suitable bearings at thelowerpart of the frame A; and 0 represents a small shaft on the upper part ofsaid frame, having two pulleys, D E, upon it, the pulley D having across-belt, a, passing around it, which belt also passes around apulley, F, at one end of the driving-shaft B.

G represents a mandrel or arbor at one end of the frame A and at itsupper part, said mandrel or arbor being fitted within a suitable head,H, and having a cutter, b, at one end. The mandrel or arbor has apulley, I, upon it, around which a belt, 0, passes, said belt alsopassing around the pulley E on the shaft 0.

J represents a pulley on the driving-shaft B, said pulley J having abelt, cl, passing around it, which belt also passes around a pulley, K,on a small shaft, L, the pulley K being fitted loosely on said shaft. Atone end of the shaft L there is hung a bevel-Wheel, M, in the innervided with a spring, 1', as shown in Fig. 2. The bevel-wheel M gearsinto a bevel-wheel, O, which is hung on a vertical shaft, 1?, having atits'upper end a crank, Q, which is attached to the shaft 1? by aset-screw, e, and thereby rendered adjustable. See Fig. 1.)

R represents a slide, which works upon two ways, f f, on the upper partof the frame A. (See Fig. 1.) This slide is formed of two parallelstrips, 9 9, connected at their outer ends by cross-strips h h, havinggrooves in their outer surfaces or edges, in which the inner edges ofthe ways f f fit.

S is a screw directly underneath the slide R, the ends of said screwworking in suitable bearings, it, on the upper part of the frame A.

T is a pulley on the screw,which pulley has a belt, j, passing aroundit, said belt also pass-- ing around a pulley, U, on the driving-shaftB.

In one of the strips 9 of the slide B there is a plate, k, secured atone end by a pivot, Z. (See dotted lines, Fig. 3.) The outer end of thisplate is notched and fits over the edge of a metal bar, V, which isattached to the side of the frame A by parallel bars or arms 2' t, whichare attached to the frame A by pivots m. One end of this metal bar V hasa rod, n, secured to it, the end of which is secured to the lever N.

W is a bent lever having its fulcrum at o. I

Operation: Motion being communicated to I the driving-shaft B, themandrel or arbor G and cutter bare made to rotate, said mandrel or arborreceiving its motion from the driving-shaft by means ofthe belts a 0.The stuff q is firmly secured in the slide X by means of the set-screwp,and the slide R, which is formed of the strips g g h h, is moved towardthe cutter b by the rotating of the screw S, which re ceives its motionfrom the driving-shaft by means of the beltj, the plate is in one of thestrips fitting between the threads of the screw. As the stuff is thusfed to the cutter,it receives a reciprocating motion by means of thecrank Q, and the stuff is consequently moved back and forth in adirection lengthwise of the mortise, and the length of the stroke orvibration is so regulated by adjusting the crank Q by means of theset-screw e as to cut the mortises therequired length. When the stuffhas been fed toward the cutter the required distance, the inner strip,9, of the slide R strikes against the upper arm of the bent lever W andfrees the lower arm of the bent lever from the lever N, which, inconsequence of the spring r, throws back the rod and metal bar V andraises the plate It from the screw S, and thereby allows the spring Y todraw back the slide R to its original position. To cut a succeedingmortise, the stuiT is properly adjusted on the slide X and the lever Noperated by hand, so as to throw the pulley K in gear with the lbevel-wheel M, and motion is again given the driving-shaft.

The above machine works well in practice, and may be attended by a boyonly. -It is simple, not liable to get out of repair, and not expensiveto manufacture. Itis well adapted for mortising chair-stuff, 85c.

WVhat I claim as new, and desire to secure by Letters Patent, is-

Feeding the stuff to be mortised to the cutter '12 in the mannersubstantially as herein shownviz., by means of a rotating screwrod, S,operating upon a slide, R, and an adjustable crank, Q, which gives areciprocating motion to the slide X, the above parts operatingconjoiutly as herein shown, and for the purpose as set forth.

City of Rochester, October 18, 1854:.

R. P. BENTON.

Witnesses:

WM. 0. S'ronns, EnLrAiI V. COBB.

